Air pump



FIG. 1 is a perspective view of an air pump showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a perspective view of the air pump where the air pump is in a configuration of use; and,

FIG. 10 is a perspective view of the air pump where the air pump is in another configuration of use.

The dot-dash broken lines in the drawings depict boundaries of the air pump and form no part of the claimed design. The dash-dash broken lines in the drawings depict portions of the air pump that form no part of the claimed design. 

CLAIM The ornamental design for an air pump, as shown and described. 